194005242 has 12 divisors (see below), whose sum is σ = 420344730. Its totient is φ = 64668408.

The previous prime is 194005213. The next prime is 194005243. The reversal of 194005242 is 242500491.

194005242 is a `hidden beast` number, since 19 + 400 + 5 + 242 = 666.

It can be written as a sum of positive squares in only one way, i.e., 174477681 + 19527561 = 13209^2 + 4419^2 .

It is not an unprimeable number, because it can be changed into a prime (194005243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5389017 + ... + 5389052.

Almost surely, 2^194005242 is an apocalyptic number.

194005242 is an abundant number, since it is smaller than the sum of its proper divisors (226339488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

194005242 is a wasteful number, since it uses less digits than its factorization.

194005242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10778077 (or 10778074 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

The square root of 194005242 is about 13928.5764527463. The cubic root of 194005242 is about 578.9012512023.

It can be divided in two parts, 19400 and 5242, that added together give a palindrome (24642).

The spelling of 194005242 in words is "one hundred ninety-four million, five thousand, two hundred forty-two".